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Constraining the driving mechanism of galaxy-scale winds with emission line spectra

Stern, Jonathan; Oñorbe, Jose; Richings, Alexander J.; Johnson, Sean D.; Faucher-Giguère, Claude-André

Authors

Jonathan Stern

Jose Oñorbe

Profile image of Alex Richings

Dr Alex Richings A.J.Richings@hull.ac.uk
Lecturer in Data Science, Artificial Intelligence and Modelling

Sean D. Johnson

Claude-André Faucher-Giguère



Abstract

Using hydrodynamic simulations and photoionization calculations, we demonstrate that quasar emission line spectra contain information on the driving mechanism of galaxy-scale outflows. Outflows driven by a hot shocked bubble are expected to exhibit LINER-like optical line ratios, while outflows driven by radiation pressure are expected to exhibit Seyfert-like line ratios. Driving by radiation pressure also has a distinct signature in the narrow UV lines, which is detected in an HST-COS spectrum of a nearby quasar hosting a large-scale wind.

Citation

Stern, J., Oñorbe, J., Richings, A. J., Johnson, S. D., & Faucher-Giguère, C.-A. (2023, March). Constraining the driving mechanism of galaxy-scale winds with emission line spectra. Presented at Black Hole Winds at All Scales : IAU symposium 378, Haifa, Israel

Presentation Conference Type Conference Paper (published)
Conference Name Black Hole Winds at All Scales : IAU symposium 378
Start Date Mar 12, 2023
End Date Mar 16, 2023
Online Publication Date Oct 28, 2024
Publication Date Dec 1, 2023
Deposit Date Dec 16, 2024
Publicly Available Date Dec 17, 2024
Journal Proceedings of the International Astronomical Union
Print ISSN 1743-9213
Publisher Cambridge University Press
Peer Reviewed Not Peer Reviewed
Volume 19
Issue S378
Pages 45-49
Series Title Proceedings of the International Astronomical Union
Series ISSN 1743-9213
DOI https://doi.org/10.1017/s1743921323002831
Keywords AGN; Outflows; ISM: jets and outflows; Magneto-hydrdynamical simulations
Public URL https://hull-repository.worktribe.com/output/4964108
Publisher URL https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/constraining-the-driving-mechanism-of-galaxyscale-winds-with-emission-line-spectra/F0856B6E5D56DDAD9C5252D26E519E8E

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0

Copyright Statement
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union.
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.






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